Washed air induction device for water pumping systems



Jan, 20, 1953 s v s WASHED AIR INDUCTION DEVICE FOR WATER PUMPING SYSTEMS Filed Jan. 30, 1950 CYR us STEVE/v5 INVENTOR.

vmmrmlu IWHW Patented Jan. 20, 19 53 OFFICE WASHED AIR INDUCTION DEVICE FOR WATER PUMPING SYSTEMS Cyrus Stevens, Findlay, 11!.

Application January 30, 1950, Serial No. 141,257

2 Claims.

The present invention relates to water pumping systems and more particularly to systems including a water supply tank.

Much difficulty has been encountered in water pressure supply systems utilizing, for example, an electric pump and a connected water supply tank from water-logging. For instance, in such systems the water tank frequently becomes so full of water that the air in the tank is compressed to a small fraction of its proper volume and is slowly absorbed by the water in the tank until the pressure thereof becomes too small to properly dispense the water in the system. When the tank thus becomes water-logged, it must be drained to re-balance the system for proper operation.

Attempts have been made to remedy the foregoing trouble and when first installed operate with reasonable efficiency. However, most devices used are expensive to manufacture and are subject to break down from corrosion.

An object of the present invention is to provide a simply constructed and inexpensively manufactured device for eliminating water-logging.

Another object is to provide a durable noncorrosive device for maintaining the proper pressure balance in automatic water supply pumping systems.

A further object is to provide in a water pressure supply system a combined air washing" and pressure control device of relatively few and inexpensive parts.

Other objects and many advantages will be apparent from the foregoing description when read with reference to the accompanying drawings, wherein,

Figure 1 is a schematic illustration of the system partly in cross section and partly in side elevation.

Figure 2 is a top plan view of the novel device of this invention, which is shown in cross section in Figure 1.

Figure 3 is an enlarged fragmentary view in cross section of the top portion of the said novel unit.

Referring in detail to the drawings and first with particular reference to Figure 1, the present invention unit B is connected between a water pump A and a water pressure reservoir tank C.

The water pump A may be of any known type and pumps water from a well or other source of water supply upwardly through inlet conduit I0, T coupling H and into the pumping mechanism, not shown. From the pump housing A the water is discharged through conduit [2 into the water tank C.

The operation of the pump is usually controlled by a pressure responsive means, not shown, so as to keep a predetermined water level and pressure head above the level in the tank C. Inaccuracies which occur in the pressure responsive means after a period of use will develop waterlogging conditions unless a unit similar to the present invention is used. To avoid water-logging in the pressure reservoir tank the present novel invention unit B comprises a receptacle or glass jar l3, for example, the usual Mason jar, a threaded cap I3 to fit thereon, having air tube connections as at M and I5. On the inside of the top of the screw cap I3 is a valve body I6 having a connecting nut I6 forming a joint with the screw cap as at l5. There is a manually controlled needle valve l1 within the valve body It and a goose neck air intake tube 18 is connected to the valve bod I6, the amount of air that passes from the goose neck into the receptacle is controlled by the needle valve IT.

The valve body It has an enlarged central part I9 formed with a side air inlet opening 20 connected to the air tube I8. The bore of inlet opening 20 terminates at and above a valve seat 2| for the needle valve H.

The valve I! has an elongated shank and a larger threaded stem 22 extending beyond the end of the valve body. The valve body H5 at the upper end is internally threaded to receive the thread stem 22 of the valve 11. A handle 23 is mounted on the stem to facilitate the adjustment of the valve ll to and from the seat 2| at the air intake area. From the seat 2| there is an axial conduit 24 through the valve body It opening by the larger axial bore 25 into the top end of the air intake tube 21.

A tight connection between the body [6 and the air intake tube 21 on the cap I3 is provided by the base flange 26 of said body I 6 and the top end of the tube 27 fixedly engaging by solder or other suitable means the axial bore 25 in said body 16 and the lock connector I 6' engaging said air intake tube 21 and bearing against the under side of said cap 13'.

The coupling connection for mounting the end of the goose neck air outlet tube l9 comprises a seating flange 28 mounted on the tube and against the top face of the cap I 3 and a lock connecter 29 engaging said tube l9 and bearing against the under side of said cap IS.

The outlet tube I9 is an S-shaped form and connects from the cap l3 to an opening in the T-coupling ll. As the air from tube I 9 enters th coupling l I it mixes with water being drawn upward into the coupling by the pump through conduit l and this mixture of air and water is forced from the pump into the water tank C through conduit l2.

The respective paths of travel of the air and water is shown by the solid and dotted arrows in Figure 1. For example, the solid arrows represent the water path and the dotted arrows represent the air path. Thus it is readily observed that as the air and watermixture feed into the tank C, the air rises through the water in the tank to above the water level L therein and a good pressure balance is maintained in the system.

The jar I3 is preferably partially, filled' with water to a level G so as to wash the air supply..

Also, air regulation is provided by adjustments of the needle valve I7 adapted for selective engagement with the seat 21. adjustment an air flow proper to effect the required amount of air for the best operation of the system is provided.

- In the usual case for example, there'may be maintained with a sixtygallon tank two-thirds full of water and one-third of air, a forty pound pressure setting.

As to the water level in the jar l3, it may be at almost any level, although there should be a liberal amount of water therein, in order to more By setting the valve readily and thoroughly cleanse the 'air passing vention is illustrated and described, various changes and modifications which will now appearto those skilled in the art, may be made without departing from the scope of the invention. Reference is therefore to be had to the appended claims for a definition of the limits of the invention.

What I claim is:

1. An automatic air supply unit for'supplying metered'and filtered air to a pressure supplytank of a water system, said water to said system being pumped by a pump from the supply of water,

said unit comprising a transparent receptacle having a sealing cover, air inlet and air outlet lines mounted in said cover, a manually adjusted valve having a locknut thereon for controlling the intake of the air through said inlet line, the discharge end of said inlet line extending into said receptacle adjacent the bottom of the same,,a fluid .in said transparentreceptacle extending above the bottom of the air inlet line and short of the air outlet in said cover, a pipe extending from the air outlet in said cover to adjacent the piping from the pump to the water supply for the system to convey the metered and washed air to the pressure supply tank mixed with water pumped from the water supply.

2. An automatic air supply unit for supplying metered and filtered air to a pressure supply tank of a water system, said water to said system being pumped by a pump fromthe supply of water, said unit comprising a transparent receptacle having asealing cover, air inlet and air outlet lines mounted in said cover, a manually adjusted valve for controlling the intake of the air through said inlet line, the discharge end of said inlet line extending into said receptacle adjacent the bottom of the same and subsequently in the center thereof, a fluid in said transparent receptacleextending above the bottom of the air inlet line and short of the air outlet in said cover, a pipe extending from the air outlet in said cover to adjacent the piping from the pump to the water supply for the system to convey the metered and washed air to the pressure supply tankmixed with water pumped from the water supply.

CYRUS STEVENS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 572,260 Jones a Dec. 1, 1896 1,329,252 Millard Jan. 27, 1920 1,430,119 Savery Sept. 26, 1922 1,706,736 Lumley Mar. 26, 1929 1,823,796 Everwine Sept. 15, 1931 1,841,839 Morton Jan. 19, 1932 1,956,390 Klotz- Apr. 24, 1934 1,963,867 Robisch June 19, 1934 V 2,520,794 Brady Aug. 29, 1950 

